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SODIUM COCOAMPHOPROPIONATE.

Valuable CAS 93820-52-1 / CLEANSING, FOAMING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING

Sodium Cocoamphopropionate is an amphoteric surfactant derived from coconut, prized for its effective yet gentle cleansing properties. It functions by aiding water in mixing with oils and dirt, enabling their efficient removal while also enhancing foam and conditioning hair.

Summary

cleansing foam boosting foaming hair conditioning surfactant

Science

Mechanism of Action

As an amphoteric surfactant, Sodium Cocoamphopropionate possesses a unique molecular structure featuring both hydrophobic (oil-attracting) and hydrophilic (water-attracting) components. This dual nature allows it to emulsify oils and dirt with water, facilitating their easy rinse-off from skin and hair. Beyond cleansing, it effectively boosts and stabilizes foam and provides conditioning benefits to hair, improving its appearance and texture.

Research

Clinical Evidence

Medium confidence
Effective range 0.3–10%
Optimal

N/A

Key findings

  1. 01 In a repeated insult patch test, Sodium Cocoamphopropionate (alongside Sodium Cocoamphoacetate) was found to be neither an irritant nor a sensitizer.
  2. 02 An aqueous solution demonstrated no irritation or allergic reactions in 20 non-atopic individuals.
  3. 03 A disinfectant hand cleanser containing 2% Sodium Cocoamphopropionate was linked to hand and forearm dermatitis in a 34-year-old nurse and atopic dermatitis in fast-food workers.
  4. 04 Positive patch test results were observed in some individuals, particularly those with a history of atopic dermatitis or exposure to a specific hand cleanser.

Transparency

Dusting Analysis

Not commonly dusted

Sodium Cocoamphopropionate is a functional surfactant ingredient widely utilized for its cleansing, foaming, and conditioning properties, making it essential in many formulations rather than an unnecessary additive.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Exhibits excellent chemical stability across a broad pH spectrum, notably stable at low pH which makes it ideal for acidic formulations such as salicylic acid cleansers. Its 'salt-free' characteristic is beneficial for formulations where salt content needs to be minimized, like certain shampoos and body washes.

Synergies

  • Low pH actives (e.g., salicylic acid) due to its stability in acidic environments.
  • Clear formulations requiring minimal salt content.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed its safety as used in cosmetic products, including reaffirmations up to 2023, based on concentrations ranging from 0.3% to 10%. While generally considered mild and non-mutagenic with low irritation potential for most, caution is advised for individuals with pre-existing conditions like atopic dermatitis. Reports indicate potential for dermatitis or positive patch test reactions at concentrations of 2% and 3.2% and higher, particularly in specific product types like disinfectant hand cleansers.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Moderate
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Sodium Cocoamphopropionate is a valuable amphoteric surfactant for a wide range of cosmetic formulations, offering effective cleansing and conditioning with generally low irritation potential, though individuals with sensitive skin should be aware of specific concentration thresholds and product types.

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